[INFO] crate blip_buf 0.1.4 is already in cache
[INFO] extracting crate blip_buf 0.1.4 into work/ex/beta-1.37-6/sources/1.36.0/reg/blip_buf/0.1.4
[INFO] extracting crate blip_buf 0.1.4 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/blip_buf/0.1.4
[INFO] validating manifest of blip_buf-0.1.4 on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of blip_buf-0.1.4 on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing blip_buf-0.1.4
[INFO] removed path dependency blip_buf-sys from blip_buf-0.1.4
[INFO] finished frobbing blip_buf-0.1.4
[INFO] frobbed toml for blip_buf-0.1.4 written to work/ex/beta-1.37-6/sources/1.36.0/reg/blip_buf/0.1.4/Cargo.toml
[INFO] started frobbing blip_buf-0.1.4
[INFO] removed path dependency blip_buf-sys from blip_buf-0.1.4
[INFO] finished frobbing blip_buf-0.1.4
[INFO] frobbed toml for blip_buf-0.1.4 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/blip_buf/0.1.4/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing blip_buf-0.1.4 against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/blip_buf/0.1.4:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 12c6a474651d73c4ec33a594fa88b4f727789dd0cc0983d31b63b1e7f944f1e5
[INFO] running `"docker" "start" "-a" "12c6a474651d73c4ec33a594fa88b4f727789dd0cc0983d31b63b1e7f944f1e5"`
[INFO] [stderr]    Compiling blip_buf-sys v0.1.3
[INFO] [stderr]    Compiling blip_buf v0.1.4 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.46s
[INFO] running `"docker" "inspect" "12c6a474651d73c4ec33a594fa88b4f727789dd0cc0983d31b63b1e7f944f1e5"`
[INFO] running `"docker" "rm" "-f" "12c6a474651d73c4ec33a594fa88b4f727789dd0cc0983d31b63b1e7f944f1e5"`
[INFO] [stdout] 12c6a474651d73c4ec33a594fa88b4f727789dd0cc0983d31b63b1e7f944f1e5
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/blip_buf/0.1.4:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 09e5ff757b12d43374534546cac6258f660c36a9019f8dfef7612f7d2c5e166a
[INFO] running `"docker" "start" "-a" "09e5ff757b12d43374534546cac6258f660c36a9019f8dfef7612f7d2c5e166a"`
[INFO] [stderr]    Compiling blip_buf v0.1.4 (/opt/crater/workdir)
[INFO] [stderr] warning: use of deprecated item 'std::thread::sleep_ms': replaced by `std::thread::sleep`
[INFO] [stderr]   --> examples/sweep.rs:44:5
[INFO] [stderr]    |
[INFO] [stderr] 44 |     std::thread::sleep_ms(1000);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> examples/sweep.rs:37:17
[INFO] [stderr]    |
[INFO] [stderr] 37 |             let mut temp = &mut [0i16; 1024];
[INFO] [stderr]    |                 ----^^^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.72s
[INFO] running `"docker" "inspect" "09e5ff757b12d43374534546cac6258f660c36a9019f8dfef7612f7d2c5e166a"`
[INFO] running `"docker" "rm" "-f" "09e5ff757b12d43374534546cac6258f660c36a9019f8dfef7612f7d2c5e166a"`
[INFO] [stdout] 09e5ff757b12d43374534546cac6258f660c36a9019f8dfef7612f7d2c5e166a
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/blip_buf/0.1.4:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 1d4d238b41f25e3ad63174413c2328dd69407b888a5f1a44e2897a9d8e8bc443
[INFO] running `"docker" "start" "-a" "1d4d238b41f25e3ad63174413c2328dd69407b888a5f1a44e2897a9d8e8bc443"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/blip_buf-c1e18ed1680df4e3
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests blip_buf
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "1d4d238b41f25e3ad63174413c2328dd69407b888a5f1a44e2897a9d8e8bc443"`
[INFO] running `"docker" "rm" "-f" "1d4d238b41f25e3ad63174413c2328dd69407b888a5f1a44e2897a9d8e8bc443"`
[INFO] [stdout] 1d4d238b41f25e3ad63174413c2328dd69407b888a5f1a44e2897a9d8e8bc443